The $100K Founder Build Playbook (Fix Your Own Business With Emergent)

Build me a complete, working web app.

WHAT IT IS: [one sentence, e.g. a study platform for ICU certification exams]
WHO USES IT: [e.g. nurses studying for the CCRN, and me as the admin]
THE ONE FEATURE THAT MATTERS MOST: [e.g. timed practice quizzes with explanations for every answer]. Build this first and make it genuinely work end to end.
SCREENS I NEED: landing page, sign up and log in, dashboard, [the core feature screen], settings.
DATA TO SAVE: [each user's results, progress, history], stored per account.
STYLE: clean and modern, [dark or light], feels trustworthy, flawless on mobile.

Rules: no placeholder screens, no fake buttons, everything clickable works. Seed realistic sample data so nothing looks empty. If something is unclear, make the smart product call and keep building, do not stop to ask me.

Make the design feel like a $50,000 agency built it. Upgrade the spacing, the typography hierarchy, and the color consistency across every screen. Add hover states, smooth transitions, loading states, and empty states. Keep my brand and layout, just make everything feel finished and intentional. Show me before and after on the three most important screens.

Open every screen at phone size and fix everything that breaks: text that wraps badly, buttons too small to tap, tables that overflow, spacing that collapses. Make the whole app feel like it was designed for a phone first. Then re-check tablet and desktop and fix anything that drifted.

Add email and password accounts with secure sessions. Save every user's [results / entries / projects] to the database so everything is still there when they log back in. Add a simple account page where they can update their details, change their password, and delete their account.

Add a pricing page with a Free tier and a Pro tier at [$9.99] a month. Wire up Stripe checkout in test mode, gate [the premium features] behind Pro, and handle upgrade, downgrade, and cancel cleanly. Clear, honest pricing copy, no dark patterns.

Add an AI assistant inside the app that [explains every wrong answer / drafts the reply / recommends the next step] using the user's own data as context. Stream its replies so it feels alive, give it a short friendly personality, and read the API key from environment secrets, never hardcoded.

Go through the entire app like a paying customer with zero patience. Click everything, submit every form empty, type garbage into every field, upload the wrong file type, resize the window. List every bug, dead end, and confusing moment you find, ranked by how bad it is. Then fix all of them and tell me exactly what changed.

Make it fast and findable. Compress and lazy-load images, remove unused code, and get every page loading in under 2 seconds. Give every page a descriptive title and meta description, add Open Graph tags so links preview beautifully, generate a sitemap, and use clean readable URLs.

I am entering this app in a contest judged by founders. Do a final pass that makes it demo perfect: a landing page that explains the fix in one screen, an obvious happy path from sign up to the core feature in under 60 seconds, realistic demo data everywhere, and zero console errors. Then write me a 3 sentence pitch: the problem, the fix, and what it saves or makes.